Log Message:
Update to 52.0.1

Changelog:
52.0.1:
    Fixed

    Clicking on a link in an email may not open this link in the external browser.
    Crash due to incompatibility with McAfee Anti-SPAM add-on. Add-on is blocked \ 
in 52.0.1

52.0:
    New

    Folder pane toolbar and folder view selector (replacement for folder view arrows)
    Optionally remove corresponding data files when removing an account from \ 
Thunderbird
    Import settings from Becky! Internet Mail
    Possibility to copy message filter
    Dictionary setting is restored when editing a draft. Content-Language header \ 
(RFC 3282) transmitted with message
    Calendar: Event can now be created and edited in a tab
    Calendar: Processing of received invitation counter proposals
    Chat: Support Twitter Direct Messages
    Chat: Liking and favoriting in Twitter
    Chat: XMPP: Support SASL SCRAM authentication mechanism
    Chat: Support Jabber/XMPP Message Carbons (XEP-280)

    Changed

    IMPORTANT: The way images are included in a compose window has changed. \ 
Images are now included as data URIs and not as references to parts of other \ 
messages or operating system files. This allows better interoperability with \ 
office packages such as MS Office or LibreOffice. Images linked from locations \ 
on the internet will no longer be downloaded and attached to the message \ 
automatically. This can be changed for each image individually via the Image \ 
Properties dialog or globally by setting the preference \ 
mail.compose.attach_http_images.
    Correspondents column now default for all new folders, can be switched off \ 
with preference mail.threadpane.use_correspondents
    When replying to a mailing list, reply will be sent to address in From \ 
header ignoring Reply-to header
    On Linux PulseAudio is now required to play sound
    Formatting toolbar is now left in place when delivery format is switched to \ 
plain text only
    Messages in IMAP folders read on external device are now filtered by default
    Folders backed by mbox storage larger than 4GB are supported without warning \ 
(unless preference mailnews.allowMboxOver4GB is set to false)
    IMAP caching now uses Mozilla's latest caching technology
    The keyboard shortcut to insert hyperlinks into a compose window was changed \ 
from CTRL+L to CTRL+K to align with Office applications
    Chat: Removed Yahoo! Messenger support (since Yahoo removed support)

    Fixed

    Message preview pane non-functional after IMAP folder was renamed or moved
    Fixed
    Editing in paragraph format: Pressing Shift+Enter sometimes doesn't move the \ 
cursor to the next line
    Various corrections when composing messages in paragraph format
    Paste as quotation doesn't always work
    Long lines in plain text replies not properly wrapped
    Undesired white-space before signature in paragraph mode
    When attachment unavailable, compose shows endless "Attaching..." \ 
message instead of error
    Text encoding of reply sometimes incorrect (uses encoding of last viewed message)
    Text encoding of message display, reply or forwarded message sometimes \ 
incorrect (uses encoding of attachment)
    Delivery Format not preserved for saved drafts (Auto-Detect|Plaintext|HTML|Both)
    Reply to own e-mail does not reply with the correct identity
    IMAP message part caching
    Links with escaped non-ASCII (international) characters can't be clicked
    Calendar: Events specified in timezone "local time" generate \ 
alerts in UTC time
    Chat: XMPP Resource collisions
    Various security fixes

Security fixes:
 #CVE-2017-5400: asm.js JIT-spray bypass of ASLR and DEP
 #CVE-2017-5401: Memory Corruption when handling ErrorResult
 #CVE-2017-5402: Use-after-free working with events in FontFace objects
 #CVE-2017-5403: Use-after-free using addRange to add range to an incorrect root \ 
object
 #CVE-2017-5404: Use-after-free working with ranges in selections
 #CVE-2017-5406: Segmentation fault in Skia with canvas operations
 #CVE-2017-5407: Pixel and history stealing via floating-point timing side \ 
channel with SVG filters
 #CVE-2017-5410: Memory corruption during JavaScript garbage collection \ 
incremental sweeping
 #CVE-2017-5411: Use-after-free in Buffer Storage in libGLES
 #CVE-2017-5408: Cross-origin reading of video captions in violation of CORS
 #CVE-2017-5412: Buffer overflow read in SVG filters
 #CVE-2017-5413: Segmentation fault during bidirectional operations
 #CVE-2017-5414: File picker can choose incorrect default directory
 #CVE-2017-5416: Null dereference crash in HttpChannel
 #CVE-2017-5425: Overly permissive Gecko Media Plugin sandbox regular expression \ 
access
 #CVE-2017-5426: Gecko Media Plugin sandbox is not started if seccomp-bpf filter \ 
is running
 #CVE-2017-5418: Out of bounds read when parsing HTTP digest authorization responses
 #CVE-2017-5419: Repeated authentication prompts lead to DOS attack
 #CVE-2017-5405: FTP response codes can cause use of uninitialized values for ports
 #CVE-2017-5421: Print preview spoofing
 #CVE-2017-5422: DOS attack by using view-source: protocol repeatedly in one \ 
hyperlink
 #CVE-2017-5399: Memory safety bugs fixed in Thunderbird 52
 #CVE-2017-5398: Memory safety bugs fixed in Thunderbird 52 and Thunderbird 45.8